Questions

Primary succession is the orderly and predictable series of events through which a stable ecosystem forms in a previously uninhabited region. Primary succession occurs in regions characterized by the absence of soil and living organisms.

The social security is a welfare plan and an insurance company that regulates the benefits for survivors of deceased workers, disabled workers, retirees and death as well as survivorship benefits.

All proteins, carbohydrates and fats are macronutrients that we need to make living. They contribute to 90% of the dry weight of our diet. 

From the given options, Excess carbohydrates and fats are stored; excess proteins are not.

All atoms of an element have the same number of protons. The number of protons in an element is a primary identifier known as its atomic number. The number of electrons is the same as the number of protons.